Well, Juan did ask her if she liked the sex. Her answer was "Yes. At times". He likely didn't want to specifically ask her "Did you like the anal sex?" due to not wanting her to say she didn't like it.
Her statement of "you sure do know how to work the booty", said in "glowing" terms, was an indication to me that she sure wasn't opposed to it. I am old(er) -perhaps not as old as the oldest juror - and I can tell you that anal sex was not unknown back in the day. It wasn't my cup of tea, but as a young woman I had a neighbor who was probably 25 years older than me who described that she and her husband used it as a means of birth control! This was before "the pill" was around.
Plus, I think there are many gay men who enjoy it.
As an aside, but while on the subject of regular anal sex, look up "anal sphincter incompetence". It is medical condition that can develop. Unfortunate, but often seen in the gay community. Anal sex is not the only thing that will cause it, but it is one of them.