BUT I had an epiphany the other day when I realized most of the sex problems have been actually MY issue in not being honest. With Mike, I have been much more open with trying different positions, telling him if I like something, or don't like something, etc. It wasn't a problem with Juan's body, rather my own lack of candidness.
This is a big breakthrough and I'm happy you figured this part out. Just keep this in mind: if you don't ask for it, you won't get it. If you ask for it, you will probably get it. Men naturally want their women to tell them what they like. Also in my other younger relationships, this lack of communication in the bedroom has been a major problem. I mean MAJOR problem. Now that I'm in my 40s, women are much more open about what they want in bed. One women actually claimed to be selfish (I saw it as being assertive), which really turned me on. She was a bit forceful, and really took charge, told me what to do, when, and how fast. It was really great!
I suppose many men fear being different, so they don't express their fantasy of having an assertive woman tell them how to do things. Some men don't have enough confidence to be with an assertive woman. But I love it.
As far as Juan goes, there are positions where he can have more friction on you. PM me for details if you want. There are also websites which list 100+ positions. Some very good for the woman. Just keep in mind long distance relationships almost never last, they are very difficult. A recent gf of mine was a 6 hour drive away. Though we Skyped once or twice a week, we only saw each other every 2 weeks.
Now use my comments to help you make a decision. We cannot decide for you.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)