The first time he saw her naked was New Year's. It was after 2, and the party his parents had had was breaking up. His girlfriend had left twenty minutes ago and he was getting ready to go to bed. He had turned out his light, then crossed the room to pull down the shade when he saw that the light was on in her bedroom in the house next door. Her shade was still up and he paused, curious, waiting a moment to see if he would catch a glimpse of her. After a minute or so he chided himself for being a peeping tom and reached up to pull down the shade.
At that moment she entered the room, reaching behind her to unzip the red dress she'd worn to whatever New Year's Eve party she had just come from. She went to her dresser and removed her jewelry – earrings, watch, and a gold necklace – then crossed the room and disappeared into her walk-in closet.
Curious, he waited, taking small shallow breaths, as though he were afraid she might hear him and discover what he was up to.
A few minutes later she emerged from her closet wearing a black bra and panties. He drew his breath in sharply and smiled. Oh my God, he thought. She crossed the room in her underwear and this time disappeared into the bathroom.
He stayed at the window, watching. He'd seen her in a bikini before, several times wearing a lot less than the bra and panties he'd just seen her in, as she sunned herself at the edge of her pool, but somehow seeing her in her underwear was more erotic.
He didn't know much about her. She was in her late 30's, recently divorced, with a daughter a year or so older than he was. She didn't work – apparently the settlement gave her enough to live on. She was small, just an inch or two over 5 feet, a little heavy around the hips but still had a nice tight ass, and breasts that he had calculated to be about 36Cs. Seeing her in her underwear, he had begun to feel the faint stirrings of an erection. He had hoped that he and his girlfriend would have been able to slip away at his parents' party long enough to satisfy the urges he had felt earlier, but that never happened. The most he had been able to do was squeeze her breast during the midnight kiss, and had gotten a slight grazing of fingernails across his crotch in return.
And now here he was, getting a hard-on from seeing his neighbor in her underwear as he spied on her through her open bedroom window.