Oh trust me, the fantasy of wanting to know what the other sex feels during intimacy is quite a normal thought in the general public. There's a reason sci-fi, have body switching as a super power (even disney cartoons play with this theme), we just sexualize it, but I'll confess I already sexualized that concept at age 12 without any outside help. The downside is that if body switching were possible, I bet girls would try to get their guys to give birth for them.
If you aren't hurting anyone done worry about it. When things become unhealthy is when you repress them. If it's something you don't have to repress, don't. If you have to repress an urge because it's harmful (i.e. wanting to commit rape) then you should seek help. This falls into the former category.
Do whatever you want to do. Explore. Have fun. Your not hurting anyone and it'd normal to try different things out.