Rekindling sexual intimacy advice wanted in long-term gay male relationship!

Monogamous 10 year+ same-sex male relationship. Over past year or so we barely are intimate and both recognize it. Very good relationship. We are not actively seeking to open up relationship and likely never will. He is opposed and I probably wouldn't like it if he did (he's bi), even though I say I would be fine with it.I am relatively horny, but actually pretty vanilla and risk averse (i.e. Not really a Grindr kinda guy).Thoughts on ways to renew interest? We really connect in every other way but have really fallen down a path of no sexual contact even though we love cuddling and are physical in that regard.We are mid-30s for some additional context.