That is a hard question! A nice ass is hard to beat but nice round breast and perky nipples are absolutely incredible as well. I guess a nice ass if I had to pick one.
That is pretty much impossible to choose one or the other. Both the start and finish line are part of that course.
I love big tits! Nothing better than burying my face in a pair of big ol' titties. The feel, the smell, it is just the best.
I definitely start with the ass. I like it firm and slightly rounded. I have a strong attraction to fit women. I look at the tits next. Athletic fit women typically have small tits and that is what turns me on. C, B, A cup or smaller in a sports top/bra is a huge turn on for me.
In everyday life with their clothes on, especially if a woman's breasts are covered, it's her ass, and in particular a tiny ass, with no hips, that attracts me most (after her pretty face first). But if she's showing cleavage with C sized breasts, then that's the first thing I see and glue my eyeballs too. Being naked with my girlfriend when we were going out, who had absolutely perfect D sized breasts on a yoga teacher's body, I totally became a breast man, and now include enjoying large breasts on women when I see them on the street. But in porn, pictures or videos, it's equally A-D breasts and small asses that give me that deep cut. But after my girlfriend and I started anal, both of us giving and receiving, and my enjoying anal with guys so much, I now love the female asshole in the porn world so much too.
What completes a woman? If she has big boobs people will stare at her if she has a nice round ass people with stare at her. I would say you need both. I definitely a fan of both. Can't have one without the other.
I love Boobs. To me a nice size pair make a woman a woman. I especially love large diameter ariolas the bigger the better. I will say that I have seen small chested women that are sexy as F:-; .