From Soft To 9 inch Hard Rock Cock With The Help Of My Girlfriends Sister

my girlfriend went out for to work so i went in the bathroom to start edging my dick , I wasn't really in the mood until her sister walked in on me in the bathroom and put her cute little hands on my sei dick , the second she started jerking me i became rock solid and grew big long and hard , before i got the chance to fuck her there was a knock on the door so had so stop incase it was my girl friend coming back early and i didn't want to get caught