He didn't want her to glance at it for too long, he has his reasons. The moment he turned around, he inactivated the rod increase by saying it, and his dick reduced to its normal size.
He had finished f**king Anne, and he enjoyed it, but he wouldn't gain anything extra from it, no rewards. She wasn't given to him by the system as a main quest to accomplish.
She was just a random girl he's been banging, so there'd be no rewards for him whenever he f**ks her. He'd gain no Exp from it, no skill points, and no strength would be received.
Anne noticed that he was somehow hiding the dick from her which she's already seen, but she didn't want to think about it too much, so she easily pushed it aside.
"That was nice sex, I really enjoyed it". Anne uttered as she was still stacked naked, she hadn't even cleaned up herself yet.
You know, Aiden's sperm was still on her face, but she'd clean it up soon. After making that utterance, she stood up. And this was what Aiden said,