My gf and I have been going out for a few years, and she's always had a stronger sex drive compared to me. Don't get me wrong, I love her and I love sex, but sometimes it takes certain things to get me riled up. She knows this and tries to get me going. She's so cute trying to do it like she doesn't want me to know what she's doing. A subtle touch against my crotch as we're watching TV or pressing her ass against me. It's pretty obvious and I pretend not to notice, seeing her so frustrated when I don't start reciprocating really turns me on.
Yesterday, she was doing her usual while we were watching TV and I can tell she was getting a little frustrated. Knowing full well, that I love her booty she takes hold of my hand and leads it under her shorts to her big round booty, she was wearing a thong. She wanted me to touch it. I oblige and rub her soft ass with my hands, giving it a squeeze. I knew she liked it, given her appreciate moan. I move my hand to the front and start rubbing her from the front, I could feel her underwear was wet. She moans as I press my growing erection against her. I remove my hand and get up, a little look of disappointment on her face, even though she knows what's coming. I help her take off her shorts, leaving her thong on (her thong was a bold purple but made of a lacey looking material).