Zach was sitting on the bed with his back leaning on the wall, while Aria was sitting on Zach's lap with her back leaning on Zach's chest.
Zach was gently squeezing Aria's twin mountains and pinching her erect nipples.
"Mnh~" Aria was letting out soft moans once in a while, but Zach wanted to hear them more.
He slowly moved his one hand down to Aria's cave and rubbed his thumb on the entrance.
"It tickles…" Aria said with a flushed face.
"Since you have never masturbated before, you don't know the heavenly feeling of the orgasm. Let me finger you and pleasure you, so you can have your first ever orgasm with my finger."
Zach nibbled on Aria's ear and whispered, "You can moan as much as you want."
"I won't moan. Hmph!"