HOUSTON, TX - Fun Sex Speaker Needed

I`m planning a bachlorette party for my best friend, and I was thinking about having someone come to the house and talk to the girls about how to have good sex. Like how to make it last longer, how to make things "interesting", etc. I`m looking for someone with props, and is fun. Does anyone have any advise on how I can find someone like that? I know there are women out there who do come to people`s houses and talk about sex with them, but I have no clue where to start looking.