"Bet on Sex" is a novel by Ulyana Grin, genre: contemporary romance, romantic erotica. I’m twenty-seven. I live by work. There’s a cat on my neck and a younger sister. How long has it been since I had sex? U-u-ugh, I don’t even want to count! There’s only one remedy for forced celibacy—sex with my best friend. Every day. Let’s start a little marathon? And whoever gives in first pays for a vacation in Thailand!