And if you and your partner like to coordinate your looks, you'll be pleased to know that the leggings are available for both men and women, so no one will feel left out. The guy is clearly a genius.
But it's not just about assorted penii (yeah it's a word), Bas has created a gaggle of style delights that include pants patterned with people's faces—helpfully entitled "Is That An Eye Or Your Vagina?"—where the eyes have been replaced by...well, you can guess.
Of course this photo offers little insight into the type of fashion fan who is keeping Bas in business, apart from the book, which suggests that his work appeals to admirers of Liberace. But then that's pretty much everyone, right?