Excellent. Anal sex is indeed enjoyable and as you so rightfully point out must be consensual as with any sexual act.
As a male I listed after my partners ass. We have some more miles than most of you readers. Consequently our history slowed us down as we explored new sexual delights. Honest communication is clearly the key. Choices I think need to be made in the light of day not in the throes of sexual activity. We ventured into oral, BDSM, toys, and a host of pleasurably intoxicating pleasures. We talked anal through and the mechanics you point out and oft times forgotten. Leading to an unhappy experience. We started slow and found (surprise) that the ass is well sensuous. Used some dildos for dilation and 💥💥found we loved it. After a session of love making she laughed and said as we showered it’s your turn next.
Last evening during a love making session with a variety of toys she rubbed my balls with her vibrator and as there was a lot of luv present she slid it in my ass. What a pleasant sensual surprise and I spontaneously said “ fuck me baby” and did she. It hit all the right spots and I had an uncontrollable orgasm. Our sexual activities have expanded once again.
Consent, a solid relationship and openness critical as in any activity.
Try it, it will wow you and cement your relationship.