Vibrating Cock Rings

A ring keeps him harder for longer; the motor on top means she feels something too. The cheapest genuinely good upgrade to sex there is. Stretchy silicone is the sensible default, because it gives when it has to and comes off without a fight. The motor belongs on the upper side, where it meets her while he is inside, and that is the whole trick: the ring is for him, the buzz is for her. Adjustable models with a loop and a clasp fit far more people than a fixed circle. Take it off after twenty minutes, use water-based lubricant if it is silicone, and stop if anything goes cold or numb.