Over 30 years into our marriage, my (late) wife was never into swallowing or having cum in her mouth. One night, we were in a hotel room with our first swinger couple. We were chilling and talking after sex. I heard him moan, looked over... he was cumming in her mouth and she swallowed it! It changed her. During her hotwifing period, she often gave blowjobs in her car during lunch break. Yes, she was swallowing mine too.