You bounce him on your strap-on as he tries to hold in his moans. A few more bounces and he's over the edge, shooting his cum all over himself.

Cum on her cock

That's it! Cum for my plastic cock!

She bounces you on her strap-on as you try to hide your pleasure and endure the pounding. After a few more bounces you're unable to hold back as you go over the edge and shoot your cum all over yourself.