I come in from the pool where Ive been chatting up your new girlfriend. We begin gossiping back and forth and making fun of her. I then tell you about an embarrassing moment from the gym earlier. My pink thong was completely exposed when I did a squat and men followed me all around the gym the rest of my work out. I reach for my stinky gym thong and show it to you. We both laugh then I ask you to put it on. I want to see if our butts are genetically big or if this thong is just slutty. You put it on and we both laugh. I then ask you to dance around, make kissy faces and we then laugh some more. I look down and notice you are getting hard from prancing around which makes me laugh even harder. I then devise a plan for you to wear the thong the rest of the day or Ill go outside and tell your girlfriend you wear ladies panties. You agree and we head out to the pool with me joking about your sissy ways.