“Ah crap! I forgot all about that text, I’m sorry. We got high and were playing pool then next, we were all over each other. I’m so sorry Kylie.”

Mary sat up and brushed the hair from her face. She looked down and saw the quizzical expression on Zack’s face. “Uh… um… I texted Kylie that we had a plan to keep you hard and you would, probably, pleasure us all.” She pointed to Amanda on the floor still out and then to Kylie slowly walking towards them.

“So what was the big idea to keep him hard?”

Mary turned to Zack and gave him an uncomfortable grin. “Well he told us that when he gets high that he stays hard after ejaculating.”

“Yeah, I told them that but at the time I thought it would be just these two.” He pointed at Mary and Amanda. Despite what he just said though, Mary felt his flaccid cock grow and harden. She decided to keep it hidden until the right moment.

“Oh… okay… well I have some homework that needs attending to… So I’ll just let you guys rest.”

Mary felt his cock pushing into her crotch and felt arousal seep into her from the feeling. She looked down at Zack, he met her gaze and nodded.

“Kylie I have some homework that I think you might be able to help me with.” Kylie brightened and jumped at the chance to spend some time with Zack.

“Yeah, I’m sure I could help you!”

“Well you know, I’m pretty smart and even I think this is hard.”

Mary rolled off of him and presented his cock to her twin sister.

“Well you know that…” she looked at his dick and her eyes popped and her jaw dropped. “That is a huge cock, how did… never mind.” She stripped off her shirt and skirt, then dropped her underwear to the floor.

“Oh Kylie come on, nobody cares.” Mary told her sister and made a motion behind her back.

Kylie shot a glare at her twin sister and walked hesitantly toward Zack.

“He’s not going to care. Zack, can you guess what she thinks is a big problem?” Mary grinned at the phrase she used.

Zack looked at Kylie kind of worried. Does she have a growth, a hairy back? He asked himself these questions. Then he noticed what Mary saw right away. Kylie made no move to take off her bra.

Mary and Kylie had much of the same looks but Kylie’s face had more angular features. Also her ass was smaller but more a bubble butt than her sister’s. Her breasts were also smaller a 32B.

Zack guessed that she thought that her breasts were too small. He thought to himself, what? They look great. But he shook his head in answer to Mary’s question.

“She thinks her tits are too small to cause any arousal. Kylie, he’s already hard as rock, it doesn’t matter.”

“Shut up Mary.”

“Here.” Zack held out his hand to Kylie. She grabbed it and he took her to the couch sitting perpendicular to the one Mary was on. He sat down and Kylie straddled him while he leaned up and kissed her.