My parents and my girlfriend Ashley's parents were out of town but Mia my girlfriends older sister was home from collage. since Mia was home to watch us our parents said it was fine if i stayed at the house with the girls. i found Mia in the kitchen the first day and thanked her for being so cool, she said it was no problem and we made some small talk about collage. i never realized how hot she was but i tried really hard not to think about that since she was my girlfriends big sis. Ashley decided to go to bed early that night so i went out in to the living room to watch some tv. i found Mia in the living some wine, i could tell right away that she was tipsy. we made some more small talk and the Mia started flirting with me, she started asking about me and Ashley and sex. then she said she thought i was cute and wanted to get to know me better! i asked what she wanted to know and she said she wanted to see what " i was working with" i was stunned and asked again what she wanted. she looked me right in the eye and said she wanted to see my dick and i should pull it out right there in the living room. i didn't know what to do but Mia kept pushing and promising that she wouldn't tell anyone so i went for it. once my dick was and Mia fondled it for a minute she told me that she couldn't send me to bed with a hard dick. she walked out of the living room and came right back with a bottle of lube. my my girlfriend in the next room i let her older sister stroke my cock till i came! This is part 1 of My Girlfriends Hot Older Sister, this series stars Mia Vallis. this is a POV handjob scene with Taboo blonde cheating milf element tide in