Offer to "take care" of it

"Oh dear," she said, placing her hand on the bulge, "Look what we have here."

"I'm sorry-" he began, trying to sit up, but she pushed him down.

"It's my fault for falling on you." Jessie insisted, "I know how men are around tits, it's just a reaction. But you can't walk home like this." She patted the bulge, making sure to keep it hard. "So let me just take care of it."

"I'm... married, Jessie." Brian said, wishing he didn't have to.

"Oh, so am I, but we won't have sex." she said firmly, "It'll just be a massage, but a little lower down. To relieve tension."

It was the sort of thing that Brian thought sounded quite reasonable, at least while he was horny. "Alright, but don't tell anyone." he conceded.

"It'll be our secret." she agreed with a wink, and unzipped him. Soon, his penis was standing tall. She slowly stroked him up and down with one hand, while he tried not to think about her chest, and quickly gave up. She used long strokes from head to base, not wanting him to cum too quickly. And she plotted her next move. It wouldn't be enough if, after today, he avoided her, or made sure not to be alone with her. She had to be certain he'd want more.