Is this normal??

I had amazing sex the other night, and my so kept stopping to suck my clit, as he reckons that since my pregnancy I taste even juicer!!! All was really good and when we'd finished I went to the bathroom to clear myself up when I noticed that my inner lips were quite swollen and hanging  below my outer lips, I've never ever had this happen to me before or even heard of it, in the morning everything was back to normal, but i was wondering if this had ever happened to anyone else???