On my first visit to my girlfriend’s house, I meet her stunning, sexually charged adult older sister. She spreads her legs and deliberately shows me her panties—she is clearly trying to seduce me. Even with my girlfriend nearby, she secretly plays with my hard cock until I cum without getting caught. The shapely-legged, experienced temptress seems to take a liking to me and keeps coming back for more, until she finally fucks me right beside my girlfriend. How could I possibly resist?