Intimacy between two ostinates at first at least for us was just getting past the shyness of showing your body with your ostomy appliance attached.
Although I am no longer and a relationship with this man it had nothing to do with our ostomies as a matter of fact because of our ostomies we thought that we were more compatible than we actually were
The first step is showing your partner your ostomy and letting them show you theirs if possible use a transparent appliance newly changed so that your actual ostomy can be seen before the bag begins to fill.
We started off necking or snogging or whatever folks are calling it these days basically exploring each other with kissing and touching with all of our clothing on. Over time in the right place clothes can begin to come off.
Once clothing begins to be removed you both begin to forget about your ostomies.
ONE THING I RECOMMEND IS VENTING GAS BEFORE YOU GET STARTED AND EVEN PAUSE IN THE MIDDLE IF NECESSARY TO DO IT AGAIN.
Sorry for shouting but I really wanted to get attention on this point. It didn't end up being a specific problem for us but it had the potential to.
After that it just doesn't matter what you are doing next. As your hormones begin to take over try to keep your brain engaged as well.
If a forward-facing belly to belly position is awkward or presents problems besides changing to one person being on all fours. You can approach each other legs spread One of you pivot so that her leg lays upon his pelvis and her heel on his chest and the other leg is almost beneath him. As you interlock turn so that all of your weight is not on one persons leg. With your heads now at opposite ends of your joined bodies kissing is impossible but intercourse is. Learning how to proceed in this position takes practice I admit. The In-N-Out motion of intercourse is trickier. However having your hands-free to roam the other person's body near the juncture is lovely and can be quite sufficient for both participants to climax. Using toys is great too but they are not for everybody.
I hope I have not offended anyone with my frankness but this seems a place to be Frank lol lowercase frank.