Hi Dr. Skipper - sexual stimulation during your period can be wonderful, the area is usually more sensitive during this time so the feelings of pleasure seem 'heightened.' If you're on your 2nd/3rd or even 4th day ive found that during intercourse the period seems to 'stop' temporarily - either that or its not noticable due to increased lubrication. This may not be the case for everyone but it may be worth giving it a try nonetheless. Definately try and discuss this topic as openly as you can - some men don't see the issue, others would prefer to wait until the cycle is over. All the best.