"Mmmph! Slurp! Mmmm!" Was all the noise Hayley could make as she was ferociously sucking on your hard on.

Hayley was your busty slightly older cousin. She was sucking you off because she had needed her english paper to be an A+ and you told her that if she'd give you a blowie you'd make sure she'd pass.

"I'm cumming! Don't stop! Aaaaah!!" You screamed as you shot your load all in her mouth.

Hayley sucked everything down and swallowed and had a look of intense satisfaction in her eyes.

"David, I didnt realise you had so much built up! That was intense! You need to jack more." Hayley said exhaustively as she wiped her lips.

"Come to me anytime you need an A Hayley" you said still catching your breath.

Hayley gave your junk a kiss and got off the bed giving you a full view of her round bubble butt. A thought then occured to you.

"Hayley wait, don't go yet, I have a favour to ask" you said as she was about to go.

"Haha David you're my favourite little cuz but you're not putting it in my bum" Hayley responded as she playfully wiggled her butt towards you.

"No no, you know I love your bum Hayley but I actually could use your help, see, I'm looking for a magic assistant for my school performance.. and well.. you would make an excellent choice" you explained.

"Haha you just want to stare at my ass in that assistant outfit cuz, but sure I'll do it, I really am greatful for the A+" Hayley responded cheekily.

"Awesome, nobody is home tonight so come by around 7 and we can rehearse abit" you said with anticipation.