Please choose the correct ending to complete the given sentence: Health: [header] How to improve sexual stamina [title] Take it slow. [step] Sex doesn't have to be fast and furious. Keep your movements slow and steady and let stimulation build gradually.

Ending1: Instead of being forceful, tease and titillate your partner by holding back and varying the angle, speed and deepness of penetration. When both partners are ready you can speed up together for an explosive finish. Ending2: It's important that you don't overdo the pace, make your partner harder and harder, or make matters worse by adding " blogging. " try to build up the speed as quickly as possible. Ending3: Remember, sexual stamina is not a recipe for perfection, and you'll probably act out of fear. [substeps] Speed is key to getting you ready for this. Ending4: If you get too sweaty, it might feel like you're just going through the motions, what's even better? Build stamina for pleasure. [substeps] Excitement can have a big negative effect on sex.

Answer format: ending1/ending2/ending3/ending4