Disclaimer: In the previous chapters David is Thomas' stepfather (not the father in law), sorry for the mistake.
"Did you buy the cake?" my mother asked as I finished getting dressed.
"Yes, I did." Tonight we were going to Emily and Josh's house for dinner, and we didn't want to come empty-handed. My mother arrived in my room as I was adjusting my shirt.
"What a handsome man," she said, looking me over from head to toe.
"You don't look bad either" I replied. She was wearing a nice black skirt with a white sleeveless t-shirt.
"Are you still flirting with your mum?" She sat down on my bed and patted the spot next to her. "Sit down Thomas, I need to talk to you." I was suddenly afraid of what she had to say.
I sat down quickly. Her top hardly seemed to be able to contain her enormous belly.
"I'm listening," I said.
She placed her hands on my leg. "I've been talking to Emily a lot, about her relationship with her son and all, and she suggested, if you're up for it, that tonight we all have sex together.
It was getting really hot. "Wait, what? Does that mean..."
"That means you can do things with Emily and Josh can do things with me."
My face must have broken down, because Mom looked at me worriedly. "Thomas, don't worry, everything's fine, it's just for one night."
"I don't know, I don't really like to see you fucking someone else, I'm already jealous enough when you sleep with David."
She took me in her arms, in a soft, motherly hug.
"I'll always be there for you Thomas, you won't lose me. It's just that I'm tempted by the experience, you know how excited I am right now." She gave me a kiss on the cheek. "If you really don't want to... I won't do anything with Josh tonight."
"No, it's okay, I agree, if it makes you happy, then it makes me happy too." I loved my mother too much to deny her anything.
"Is it true? That's great! Thank you so much, sweetheart. And anyway..." she put her mouth to my ear and whispered, "You're the only one who will be allowed to cum in my belly after I give birth.
"Wow, that's so dirty what you're saying mum. Didn't you say we should always use a condom?"
"Yes I did, but don't cheat, I'll take the pill too."
"I'm so looking forward to that," I said as I touched his bare leg.
"Not too fast young man, you don't want to be exhausted for tonight, you're going to need all your cum to satisfy us. Besides be careful not to cum in Emily's pussy, I think she's saving that for her son for the baby."
"For the baby? Did Emily tell you about that?" Indeed, Josh tried to impregnate his mother who let him.