Stymied by a certain sex act? You might want to try a different position--and not just for the old in and out, either. We often find that seemingly impossible acts (like, say, deep throating) become easily achievable with just a slight adjustment. Having trouble giving head? Try this fancy configuration (head hanging back, mouth wide open), and see if that doesn't open up a world of possibility to you.
[Via Reddit. Have a gif you'd like to see us feature? Email us!]