my g/f has done this for me a couple times. would be more if she had the opportunity!!
one time she was watching a coworker's dog for a few days, she had to check in and feed it. so one time she went into the bedroom, opened the panty drawer and filmed it but that was it, she got cold feet haha
other time was another friend when we were at a party. used the second bathroom in the basement that just happened to have the laundry too. we found a pair, she rubbed em on her clit and then we promptly left the party to go fuck hahaha
that second time are these pics :D