The fact of the matter is it happens from time to time
It's just air forced inside escaping, normally it's when you pull all the way out and push back inside quickly and repeat. Most commonly happens in doggy, especially if her legs are between yours.
IMO it's nothing to be embarrassed about, it's just the way your bodies are fitting together and the only thing you can really do to control it is skip the position or style of fucking that causes it.
And yes 9/10 women would be mortified when it happens, though I imagine SPs less so.
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