It has been about a month since then, we have been fucking so much that the shape of his cock is now engraved in my pussy. Also, not to brag but I have also become a bit of an exhibitionist over time, I roam the streets and alleys completely naked sometimes at night, before making my way to our breeding hole. I know, pretty bold right?
I have become a total nympho over time, definitely not the best look for a mother. Speaking of which, my son is returning from his hostel today, I am going to have to be more careful tonight to not get caught. Yeah, I am going to have sex despite my son returning home, in my defence though, I can no longer go a day without that cock in me or without feeling some outdoors wind on my bare vag. It's as if my lock can now only be opened with his key.
The doorbell rings out at about 2 pm while I am fingering myself completely naked, I quickly put on a sari and go to open the door. As my son's face emerges on the other side, I am filled with a heartwarming feeling. I hug him instinctively.
"It's been such a long time Riku, your mother has missed you."
Riku has grown up a lot, he is even taller than me now.
"M-Ma, what's up with your clothes?", Riku says, flustered and looking away.
I take a look at myself and realize that I have forgotten to wear a blouse, and judging by how chilly my pussy feels, I'm not wearing any panties either. I jump back and quickly cover my crotch and boobies with my hands.
"I'm sorry Riku, it's not what it looks like, actually I was just about to take a shower, why don't you come in and change up while I continue with my shower."
Riku nods in agreement and enters silently, my quick thinking saved me here, at this rate Riku is going to find out what a slut his mother is. I enter the bathroom and remove the sari, my pussy is soaking wet. I might be a very perverted slut but I still should not get wet because of my son, that is one line a mother should never cross, but oh I can't help it, he has grown into such a fine man, any woman would get wet at the sight of him, let alone after hugging him half-naked.
I start fingering away at my cunt in the bathroom, it's soaking wet. I grab one of my tits with my right hand and start fondling them as my fingers scour my dirty twat.
After a few minutes I hear the faint creaking of the bathroom door. I quickly turn my head towards it and notice the door half open with Riku peeking at me with what appears to be his cock in his hand. Riku quickly hurries away and I follow after him.
"Riku, wait!", I cry out as I grab hold of his hand.
I just caught my son masturbating to his mother's dirty body and yet I feel extremely aroused, my lower lips are begging to have that sausage inside them. Riku is still turned away all flustered. I hold his head and turn it my way as I force my lips on his. He is surprised at first but then returns the favor by pushing his tongue inside my mouth. I wrap around his tongue with mine as our naked bodies wrap around each other, his cock directly steals kisses from my pussy lips and my huge titties get smothered by his chest.
After a minute long passionate kissing session we part our lips but still keep hugging each other, my face inches away from his as his aroused breaths fall on my face. We are like animals in heat, there is no going back from here.
"R-Riku, do you wish to feel your ma?"
Riku dropped his head timidly, unable to answer but the way I phrased it made his cock jump and smooch my dripping lips, he was clearly excited at the prospect of inserting his cock in his own mother's pussy. Like mother, like son as they say.
I hug Riku once again with my whole body and place my lips on his, his cock gets smothered by my pussy lips and just the tip manages to take a peek of my insides. As I kiss him passionately, I feel his cock pulsating, wishing to gain entrance, I might be the one teasing him, however I am no different from him, I feel my vag begging me to be connected to his cock, but I still manage my urge and keep myself from pushing my hips into his. The slightest push would end up connecting our bodies, it almost feels like his cock would enter me with a pop anytime now. I can't just cross this line on a whim, this is the one thing we should not be doing.
Now, after a seven minutes long passionate kissing session, both he and I are dripping wet at the ends, still unable to gain entrance. I unwrap my tongue from his and say while still touching his lips,
"I'm sorry Riku, ma can't take it anymore. Your ma's twat is just begging to feel the son it gave birth to. Please, f-fuck me Riku."
"Y-yes ma... I too, can't control myself any longer."
With that mutual agreement in place both of us prepared ourselves for the big moment. With our faces so close that our heavy breathing couldn't be hidden and our eyes locked, we pushed our hips together and...
*flop*
"Ahhn."
Just like that we were no longer just connected by our blood but also by our bodies. We had become one. This feeling somehow felt reminiscent...
wait, isn't this shape... also the length... th-this can't be...
*klang*
This was most certainly, that one key that could undo my lock. It was a perfect fit, there was no way I could mistake it, that cock was engraved into my pussy now, I could never forget the touch of those nights.
Both of us looked at each other in shock, he too seems to remember my pussy like it's his own room. I let out a slight chuckle and then return my gaze to his, desire fills his eyes, we start moving our hips back and forth gradually, our bare bodies may not know each other very well but our lower ends are very well acquainted with each other. There is no longer a reason to hesitate, the familiar embrace puts both of us at ease, and we shake our hips away.
We stand there, in the middle of the dining room, buck naked, hugging and looking intently at each other as our hips smack together, the wet genitals and the meaty hips crashing into each other makes the dirtiest sounds and fills the entire room. My quiet whimpering turns to moaning...
*plop* *schlop* *shlop*
"Ahhh haah ahh... uff."
and then to screaming with no reservation as the light smacking of hips turns to intense slamming.
*THAP* *THAP* *THAP*
"AAAAHHHH HAAAHHH Hnghhhhh."
We kissed deeply to try and reduce the screaming which turned it into muffled whimpers. I locked my legs around his waist, he reciprocated by holding me by the ass. I was now being carried by him.
*THAP* *THAP* *THAP*
"Mghhh mfff mmm."
He had stopped moving his hips at some point, I was the only one moving my entire lower body at incredible speed, slamming into his hips, desperate to be fucked by him. My insides were starting to convulse and they now tightened strongly around his cock, not letting it go. With three more thrusts of his key,
*THAP*
*THAP*
*THAP*
...*Click*
The lock to my birthing grounds came undone and motherly floods came gushing out, at the same time his cock smooched into my womb, and entrusted it with the warmth of it's long lost son along with a very 'fulfilling' gift.
I could feel both our tongues overflowing with saliva, as both our upper and lower lips remained connected. Our internal smooching just felt way too delicious.
We stood there fucking each other until night fell.