The biggest difference is that it usually requires much more effort for sex to feel good for aces compared to allos and much less awkwardness for sex to feel boring or uncomfortable. To return to a food metaphor: Imagine the difference between eating when ravenous and being full but willing to share a snack. People can enjoy eating when they’re not hungry, but when the food itself is not satiating hunger, the social aspects need far more care and have to be just so.
