Then there's the whole issue of body parts. If you're going to refer to genitals please avoid scientific terms. Vagina and penis make me feel like if I'm sitting in a biology class. Also, refrain from using funny terminoligy unless it applies to your story.
For example: Mary stepped out of the tub. Her mouth watered at the sight of Sam leaning against the doorway. She took a few steps toward him eager to wipe that smug grin from his face. She lifted her hand to her face while trying hard to maintain eye contact. Very slowly, she ran the tip of her tongue over the length of her palm. Then, she reached for him. (See, no naughty words at all.)
Hope this has been helpful or at the least entertaining. Have a great day!