It is the goal of all men to have a good performance in bed. This way both he and his partner would receive more pleasure. The good news is that there are some exercises you could perform to improve your performance.
Swiss ball pressup
According to physics, the longer you can support our own weight, the longer you can offer and receive pleasure. For the exercise you should place your shins on a Swiss ball and get into a pushup position. Lower your torso to the floor by bending the elbows.
Lower back lie down
Start with lying on the back, with your feet on the floor. Bend the knees and bring them to your chest. Wrap your arms around your legs. Hold position for 30 seconds. Repeat the exercise as many times as you can.
If you work your leg muscles you will have better hip flexibility and you will have a wider range of motion. For this exercise you should kneel on a mat with your knees at a 90 degree angle. Your head, back and thighs should be aligned. Lean back, hold position for a couple of seconds and return to starting position.
Hip flexor lunge
Start by standing up. Take a step forward so your legs will be at least one meter apart. The knees should be slightly bent. Push the pelvis forward. Stop when you feel a stretch. Hold position for half a minute then repeat on the other side as well.
Lying gluteal bridge
Endurance exercises are important so that the muscles get stronger. This way they will be able to work when you need them the most. For this exercise you have to lie on your back with the knees bent at a 90 degree angle. Squeeze the glutes and lift them from the floor until your shoulders, hips and knees are aligned. Hold position for 3 seconds and return to the starting position.
For this exercise you should be in socks on a slippery surface. Start with the pushup position. Keep the position of the hands and slide your feet backwards. Then just slip forwards until your knees get under your chest. This is considered to be one rep.
The main point of these exercises is to mimic the movements that you are supposed to do in bed and to strengthen the muscles that you need in those special moments.