Best sex positions for penetration. This variation is more comfortable, so you can both really be present in the moment. Same goes for sex positions. Want to rev things up? While this study focused on women receiving a fertility treatment in which sperm is injected directly into the uterus, the advantage may also apply to good old-fashioned intercourse. Subscribe to the Newsletter. This position is just like cowgirl, but with a twist. One of you takes the lead and the other follows so that you inhale and exhale together. You need to communicate with your lover to find the right thrust that works for her. You get into a partial bridge position, with your weight resting on your shoulders. Lazy dog This spooning-doggy style blend is super sexy and cozy. This position allows for super-deep penetration, and a snug fit which can feel great for you and your partner.