If someone doesn't like the game or feels awkward about it, they don't have to play. It's not like it's a surprise by the time you download and log in. It's pretty obvious what you're in for just looking around the site.
The skimpy outfits, pretty girls, and innuendo are just things to get attention and draw people in. What is keeping people (well, other than the ones purely here for the before mentioned things) is the interesting storyline, quests, personality of the characters, good PvP, wonderful graphics, and great community.
So if you're old enough to play, and a little sexiness (not porn, if so, then what, half an x?) doesn't scare you, then come play and have fun!