The happy end is a small plastic ring, with a clit-stimulator on one side. The guy puts the ring around the base of his penis, the stimulator being on the top side. With intercourse this presses against her clitoris.
‘Clit-stimulators’ like this can be sold in many colours, shapes and materials. They all have different names, like magic ring, pleasure ring or tickler.
The idea is nice, but the effect is normally disappointing. They have to stay in place, without constricting the penis too much. And even when they stay in place they often don’t hit the clitoris. If they do, the material should be pretty soft not to hurt this sensitive spot. But if the material is very soft, the girl might not feel anything.
When you try it use a water-based lubricant. When it’s slippery it feels better and the risk of it sticking to the skin or hair is decreased.
Most cost somewhere between five and ten euro. You also have them with a vibrating system inside (the blue one), but these are more expensive.