Roberto Cavalli may be 70, but he just opened his first Tokyo boutique and feels as young as ever. WWD chatted with the Italian designer and somehow they arrived at the topic of how long he’s going to live. He then apparently felt the need to calculate how many times that he’ll have sex before he dies:

“I’m young. I have another 50 years of life,” he said before going on to perform a mathematical equation and estimating that he will have sex another 15,000 times before his demise.

So there you have it. Roberto Cavalli will live to be 120 and have sex 300 times per year until then. Sounds fun! And if you were curious, he’ll be having sex with women only because as he once told Elle, “In my planet, fashion, I’m the only straight man.”