Watching porn as a couple puts a lot of pressure on a guy. The absurdly giant cocks, acrobatic positioning and marathon sex sessions can often pinpoint the average Joe's shortcomings. Picking up this title won't make things any easier. Just when porn couldn't make guys look any less adequate, along comes Private's Sports Instructor.

Think you're badass for fucking your girl in a Camaro? Oliver Sanchez ass-fucks Lady Mai while riding an ATV mountainside. Vanessa May, Jennifer Love and Lucy Belle dyke out while rafting down a river. But, most impressive is the high altitude, mid-air hang-dogging b.j. and fucking Mai and Sanchez perform off a cliff.

Retailing: Outrageous sex for adventure-loving couples.