Position her knee between your legs again

Your sex drive takes over your will completely as you press her body back into yours and bring her knee to your sac, waiting for more of that intoxicating mixture of pleasure and pain. Your neighbour smiles as she lets her breasts massage your chest, moving your hands to her shapely ass. "To think we could've done this all this time? You should've come down earlier..."

Your cock twitches as she once again shoots her knee up into your manhood, your legs forming the perfect runway for her devastating slams. Slam! Slam! Squish! As she continues to throttle her knee up to your awaiting balls, her lips close on yours and her hand moves to your throbbing penis, stroking gently as you explore her mouth with your tongue, pleasure overwhelming you entirely, each hard knee somehow bringing a strange satisfaction as you lust for more.

"Do I sense someone wants harder?" She asks coyly as her lips leave you for a moment and your legs spread a little wider. Lost in desire, you nod, as she reclaims her kiss and begins slamming her kneecap even harder between your open legs, flattening your balls like pancakes. You want more... you need more...

Your balls begin to squish dangerously as a slight suspicion floats into your mind that perhaps you are going too far.