(Complete fantasy, and if not interested in descriptions of MMF and MM sex, no need to read further)
One of the major personal attractions to nudism is simplicity. As illustrated on this lovely spring day, where all we needed for enjoying the sun was lotion and a couple of beach towels to cover the reclined beach chairs.
Along with a naked woman lotioning my back, sitting on a towel on the beach chair next to mine. She was not used to such direct simplicity, but considering how high we were, she appreciated this introduction to its advantages. Much like she was appreciating thoroughly oiling my skin, unconcerned at my nudity or obvious delight at feeling her touch as she continued use the sun tan lotion on all the exposed skin in easy reach.
She did a delightful job on my ass, and then my inner thighs as they gradually opened, slowly going down my legs before doing a wonderful massage with each foot. Considering how intimate we had been before going nude into the sunlight, it was neither teasing nor reserved, allowing me to appreciate a lovely level of skill.
"Would you like anything to drink?" she asked after letting down the second contented foot.
"A beer would be nice" I replied, "and I recommend one for you too. Remember we need to make sure you do not get sunburned anywhere sensitive the first time in the sun as a naturist. There are a couple of different types available, but a Pilsner Urquell would be perfect." My tone was hopefully inviting, without being too overbearing.
"I'm not sure what that looks like" she said while rising, "but two sounds good."
"You'll need a bottle opener, in the top drawer next to the fridge. The Urquell bottles are green, on the same side as the drawer."
I quickly covered the rest of myself in lotion, not wanting to get sunburned while spending time making sure she was well coated in lotion. Sue was not the first naked woman I had done such to, at least in terms of making sure someone's back was protected. She was definitely the first woman with a connection considerably deeper than a simple stranger on a beach, into only from the fact that her husband and mine had had sex and how we had masturbated in front of each other watching them.
The instructions were more than adequate, soon returning with two bottles and an opener. She opened both first before handing a bottle to me. Raising it, I let the cool wetness run over my tongue. Watching her, she seemed to appreciate the balance of crisp and refreshing, taking a good swallow.
"Nice" she observed after her second, longer swallow.
At this point, nice as the beer tasted, I knew that the clock was ticking on her not getting a sunburn after the delicious interval she had spent oiling me. It is too easy to underestimate the power of the sun in mid-spring, especially for those lacking any exposure to the sun in sensitive areas. Not that I don't enjoy the view of a woman with a tan who goes topless, as the contrast in color between tanned and untanned skin and nipple is lovely. A dedicated female nudist on the other hand develops a similar color tone, so that the distinction between skin and nipple color is almost gone.