Dude.... Why are you talking about "straps" here ? Is there something I should know about this story..?!
(For your information (just in case): 1. I only read the first 2 chapters and watched the 2 Hanime episodes years ago.. 2. I may be 'fine' with a "male to tg/ts/futanari" stories, but I really don't like the reverse and the "pegging" ones...)