Update!
The abandon with which Penelope rode that monster cock would have certainly surprised her husband, had he not been sound asleep upstairs. His wife had always been so meek in their lovemaking, letting Brad do the work. Now she humped his brother like a woman possessed. Which, technically, she was.
“I’m … on the … pill.” Penelope needed him to cum inside her. She had never desired anything so much before that moment.
“What?” Daniel couldn’t see her face as her boobs bounced in his face. He regretting not pulling off her t-shirt earlier, but now he just held on to her hips for dear life.
“Cum in me … uh … uh … uh. Fill … me … Danny.”
“You want me to …?” Daniel’s voice was muffled by cotton and bouncing boob.
“Unload your … balls … inside.” Penelope’s movements became more erratic as she was on the verge of having another orgasm.
“Okay.” Daniel was close. He let the pleasure continue to build. After about twenty more strokes from his sister-in-law’s pussy, he let go. “Pen … Pen … Pen … aaaaaahhhhhhhhhhhhhh.” He tightened his grip on her hips to hold her all the way down on his dick as he erupted in her warm pussy.
***
Penelope looked up at his monster cock, twitching and oozing precum. Her blue eyes went round and glassy. “You want me to suck it? Again?” Her unsure hands reached up and felt the veiny thickness. The dick was not only out of proportion with his body, it would have been out of proportion attached to any man she’d ever known.