Rosie is 15 and Ashton is 20 in this imagine! This is just kind of a silly one :p
Hope you like it!

Your P.O.V

"Okay Rosie just left. So we have the whole house to ourselves now." You said closing your bedroom door. Mark stood up from the bed approaching you.

"So..... What do you wanna do while we're alone?" He asked smirking and wrapping his arms around you. He didn't let you answer because he kissed you. Your hands slid up his body to tangle in his hair. His hands slid down your body and squeezed your bum. He then lifted you up and carried you to the bed, his lips not leaving yours.
He later you down on the bed and pulled your shirt off over your head. He began to kiss your neck as you unbuttoned his shirt.
Soon you were both lying there in your underwear. His kisses trailed further and further down your body. He stopped at your panties and laid a finger there.

"M-Mark please....." You whimpered.

"Please what?" He growled.

"Mark d-don't make me beg...." you whined

"Please what?" He repeated in a deep raspy voice.

"Mark, you know what I want."

"You want me to stop?" He asked teasing you.

"Please Mark..... Just fuck me."

*The living room*

"Ashton what are you doing here?" Rosie asked as he was heading to the porch doing the same as she was.

"Well I need some food... We don't have any at my place." He said unlocking the door.

(Okay yeah I know this is probably gonna get a little confusing so now we're going back to you and Mark's room.)

"Wait? Did you here that? It sounds like someone's in the house." You said interrupting everything.

"It's probably just nothing...." Mark responded as you two got back to what you were doing.

Back into the living room with Rosie and Ashton.....

"Do you hear that?" Rosie asked as they entered their home.

"Yeah... Are Mom and Dad home?" Ashton asked.

"I don't know.... I left to go to the mall with a friend... but she cancelled."

"Hmm weird."

"I need to do some laundry I'll be right back." Rosie said heading to get a laundry basket.
She soon came back with one. She walked down the hallway to the laundry room. But to get to the laundry room she had to pass you and Mark's room. She abruptly stopped outside their door. She heard moans and shit coming from their room.

"Omigod Asher!" She whisper shouted motioning her brother to come over there. He rushed over their and pressed his ear against the door.

"Oh my god! They're having sex!" He exclaimed cracking up. The look on Rosie's face was disgusted.

"Ew they are way to old to be doing that...." Rosie said.

"Yeah totally! This is hilarious!"

"I mean if you have kids that are having sex you should not be having sex." She said. Ashton stopped laughing and stared at her.

"Rose I really hope you're talking about me and only me.... Right?" He asked

"......Uh yeah sure." She said

Mmkay back to your bedroom with you and Mark.

You and Mark laid side by side on the bed panting. You glanced to see your phone lit up from a text on your night stand. It read....
Ashton: Coming over for food

You rolled over and kissed Mark one more time and then stood up from the bed.

"Wh- where are you going?" Mark asked.

"I'm getting dressed our son's coming over." You said gathering your clothes from all over the room. He groaned and did the same as you.

Rosie and Ashton heard footsteps toward the door and scurried to the kitchen pretending they didn't know anything had happened.

You opened your door and then immediately closed it and gasped.

"What?!" Mark asked concerned.

"Mark. Both of our children are home."

"What?" Mark asked in shock. He headed over to the door and cracked it open to see his kids sitting at the table talking. He closed it and asked you
"When did you get that text from Ashton?"

"10 minutes ago! But it takes him at least a half hour to get here..." You replied.

"Do you think they heard us...?" Mark asked.

"I have no idea."

You two opened the door bracing yourselves for what ever was about to happen.

"Hi Mom, Hi Dad." Ashton said

"Hey Ash..." You replied.

"How are you guys?" Mark asked

"Fine." Your kids said in unison.

"Hey we're gonna go upstairs and watch some tv." Rosie said as her and her brother stood up from the table.
They were half way up the stairs when you heard Ashton yell down
"Maybe next time you could keep it down a little!"
And then you heard continuos laughter from your children. You stood there with your mouth wide open.

"Oh my god." You said blankly. Then you and Mark both did the same thing. You laughed.

"Hey at least they heard us doing it, and we didn't hear one of them doing it!" You said still laughing a bit.

"Ah yes you're right." Mark said. He wrapped his arms around you from behind.

"Hey, I'm not gonna lie.... It was all worth it." He said smirking.

Helllllo guys!! I really hope this one made you laugh.... I kinda had a plan for it and it just went to complete fuckery.... Haha yeah so thanks for 14k and 500 votes!! That means so much to me! I never thought my imagines would get as far as they've come.
Also I apologize if this imagine was confusing I tried now to make it that confusing but sorry if I did...
Thanks for reading! Make sure to vote and comment!!
<3