Not hard doing anal

I LOVE ANAL, but I immediately lose any erection while having sex or playing with toys? I see all these people on here having anal with amazing erections… I wish that was the case for me, but I don’t know why I go soft as soon as I’m entered?

And don’t get me wrong , I absolutely love being a bottom.. I just wish I could have a hard on at the same time.

Anyone else experience this or know why?