Drive and RPM contain nutrients that should help boost libido and sexual performance. Icariin's role here is well known. Dodder seed helps boost sexual performance by also delaying ejaculation. It is, in fact, used to treat premature ejaculation. Dodder seed and icariin are well-known to work in synergy. Then add arginine, grape seed extract, and naringin for extended half lives. Sexual stimulation on its own triggers many complex processes that finally produce an engorgement of the penis with blood, leading to a full blown erection. This engorgement also ensures the penile nerve endings become significantly more sensitive to touch and stimulation. In some cases, this increased sensitivity can lead to such heightened stimulation that weakened control over ejaculation results. This should get better with time, though, as the user in question gains more mastery over the situation. Ultimately, the stack should help boost not just libido, but sexual performance.