Something that is always going to impress more that size, is a really strong erection. The following simple exercise will help and almost all men report great benifit from it, if you persist long enough. This app helps you practice some Pelvic floor exercises.
Doing Pelvic floor exercises can help you get the most from your sexual activity. The exercise strengthens the muscles that support the penis, known as the pubococcygeus muscle, and regular exercise of the PC muscles has many health benefits. Enjoy it!