>>23474296 (OP)
The best part of sex is the initial penetration. After that the mechanical components are worse than jerking off, but the emotional components can be better.
The anus is fun because it's naughty, and the work to getting your penis in there is nice, but after that it's a worse pussy.
My preference is starting in the pussy, switching to the anus, using the lube from it to push in easily but still causing great discomfort, pumping hard and deep as much as I can, and right as I feel myself being close to climax I switch back to the pussy and blast.
If I'm extra spicy I'll stay in as I soften and take a leak too.
Of the four women I've been with, the first is the one that got me into this, the second hated me for trying it, the third and fourth both grew to love it. I think women enjoy being treated like objects and degraded.