Ah, I didn’t realise it was a branded product. I thought Hook Ups were just your name for any underwear with a built in butt plug… I quite liked the name 
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Lovehoney don’t stock them but if you’d like them to… or design their own male equivalents you can post a request and link (the only place on the forum where competitor links are allowed) in the Pander to me! … PRODUCTS ONLY thread. That thread is monitored by LH buyer staff so you never know, maybe they’ll start selling them or their own versions of them.