Zach played around on the periphery for a while to let her get used to the pain before penetrating her hymen completely.
Diana wanted Zach to take her completely once and for all so the anticipation wouldn't keep her on her toes but at the same time she didn't want the pleasure that was tingling her very soul to end. She wanted him to caress every part of her body with his electrifying hands.
She wanted him to stop teasing her.
But Zach took his sweet time floundering around the periphery. He would invade her insides only to pull out a moment later.
The sensation was enough to destroy any semblance of sanity left in her as she lost herself in the realm of pleasure and lust that was beginning to overshadow her rationality.
Zach couldn't hold himself back for long either. He knew that it was her first time, so he was trying to be gentle and accommodating. He wanted to at least ease the pain by moisturizing her insides first.