Okay, I'm 19. My sister still attends HS and she sometimes brings along her best friend (Fifi) after school home. She is freaking beautiful. Anyways, She and I get along pretty cool. She always tries to wrestle me and stuff. We flirt, but by touching. She sees me on the couch and she comes to put her head on my thigh or put a leg over my knee. We touch hands, she runs her hand thru my hair, etc. That is how far its gotten. Whenever we doing any of this, I get an instant semi. Gosh, she smells good and her hair is sexy. Well, Yesterday all three of us were at the comp, and i think my sis asked Fifi why she comes to our house so often. She said she comes to see me. She said this infront of me and it created a akward silience. Sooooo, awhile after that, i went to my room and she followed me. she sat on my bed and we started to draw on each other's arm lol. time ended and she had to go. I regret not asked her right there about the her purpose of coming to see me. I wanna see if I can make something out of this. Thing is she is 16 and has a boyfriend. I wanna bring up what she said but uncertain about how. Should I whisper in her ear? or should I grab her hand and take her outside and ask her? What should I say? and I enjoy the touchy flirty thing. I want to improve. I sometimes tickle her knee and play with her hand. What else is there I can do?