[Bimini]

From the giving perspective, spooning works well and depending on your partner may be preferable to cowgirl, but cowgirl definitely gives you superior control. Doggy style and missionary with heels on your partner's shoulders coupled with slow deep strokes permits deeper penetration. Liberal application of lube helps, as does taking a deep breath and releasing it forcefully as your partner inserts. Relax, and try to avoid dwelling on performance; instead, think how great it will feel and smile. Several deep breaths beforehand may also help.