Blown Away is in the "Erotic Thriller" genre in the tradition of movies like "Poison Ivy" and "Basic Instinct". There are frequent strong scenes of sex in the movie. The sex scenes are more erotic than explicit but still more graphic than the average thriller.
Corey Haim is seen fully naked throughout the film. After he kisses and performs oral sex on Nicole Eggert against the wall, he removes his shirt revealing his bare chest and exposing his nipples (her nipples are already exposed with her bra open). They then kiss some more and he drops his underwear revealing his bare butt and begins intercourse with her still pressed against the wall. The next morning, they are seen lying in bed fully nude. They are asleep while spooning, with Corey tightly pressed against Nicole's naked butt. She then hears her father pulling into the drive way and hurrys out of bed and begins dressing herself and Corey follows suit. They are both fully nude all the while.
Corey's butt can be seen again as they take a shower together; Nicole is naked too.
4 sex scenes through the film, the most explicit showing Corey thrusting into Nicole multiple times.
Frequent sexual dialogue. Especially between "The Two Coreys." There is a running phrase in the film about "Wes (Corey Feldman) and his amazing penis!"
Towards the end of the film, Corey Feldman is seen having sex with Nicole. This scene is very short, but quite explicit as she is seen easing slowly up and down while he thrusts beneath her. His pleasured expressions can be seen as they moan together. Nicole is wearing a lingerie top and one of her nipples pop out as they have sex, before they are interrupted. After they are inturrupted Corey Feldman (surprised) gets up from the bed while holding his erect penis. Although it is dark, if you look closely you can see Feldman's testicles quickly move as he stands revealing his bare butt in closeup full view of the camera.
Nicole Eggert, the female lead, practically spends half of the film naked. In one particular scene, she pulls off her top and stands against a wall in skimpy panties. Corey then sucks on her breasts, tears off her panties exposing her bare butt, and then begins oral sex.
*What I've described is what I've seen in the rated version. There is an unrated version that could possibly be far more explicit.*