You bring up talking about Ironhide moving in with you and starting a family. He tells you to wait until the end of the vacation, which worries you. Ironhide realizes this by Wednesday and Decides to have the conversation. You are worried about what he'll say.

Ironhide POV
One good thing about being here; I can make (Y/D) breakfast in bed. It's a pain to carry a tray up to our room at the base. I hope the smell of the food doesn't wake her up. First, I'm taking a shower, though I'm risking (Y/D) waking up earlier than I want.

I think of what (Y/D) and I can do all week and how I can tell her I'm moving in as I cook breakfast. Maybe there's no way to tell her besides being straightforward? I don't have much stuff to bring here, so I'm not sure if she'll notice or not.
Once I'm done making breakfast, I put it in the tray and bring it upstairs.

(Y/D) is still asleep; I don't want to wake her up, but (F/B) is not good cold.
I lay on the bed next to her and gently shake her arm.
"(Y/D) you're ruining the surprise," I whisper in her ear.
"Can't I sleep in?" She grumbles.
"Not if you want cold (F/B), also it's ten-thirty, so I think you've slept in."
(Y/D) is about to get out of bed when I tell her to stay in bed. She sees the tray and fixes the pillows.
"Are you going to do this all week?" She asks.
"If you want," I kiss her before getting on the other side of the bed and positioning myself close to her.
I think I've just created a problem once our vacation is over. No way we can do this when we have to be at N.E.S.T. early in the morning.
"It's still warm enough to go to a water park," (Y/D) tells me.
She has a pool here, but It'll also be fun going down the water slides.
"As long as I'm with you, I don't care...mostly," I tell her.
"What do you think I'm going to have you so that you won't like?" She laughs.
I don't answer; instead, I eat my breakfast.
"Like...talking about moving in with me and maybe starting a family?" (Y/D) nervously asks.
Scrap, how am I going to surprise her now?
"Let's enjoy our vacation and talk about it Sunday, ok?"
I know this answer disappoints (Y/D). Prime is fine with me moving here and never said (Y/D), and I can't have sparklings. Though the question is, what do we do when that happens? (Y/D) would have to come back to the base. Then there's the issue of the sparkling not able to have a holoform right away. I'm not sure if we'd have to wait until our child is like a human child and would have to learn to use a holoform, or can that be taught early? One step at a time.

(Y/D) POV
It's only Saturday; I should have held off bringing this up. I hope the week isn't ruined.
We enjoy breakfast and get ready to go to the water park.

While enjoying the water park, we get a text from Sam saying he's having a party tomorrow and a text from Sideswipe saying he wants to have a beach day with all of us.
"Half our week is planned already," Ironhide sulks.
"We'll stay home the rest of the week," I tell him.

The party and the day at the beach was fun. It's already Wednesday; the vacation is halfway over. This means the conversation with Ironhide about him moving in and starting a family draws near. Four days away, but I'm still getting nervous about what he'll say.

Ironhide POV
I was going to wait until Sunday to try to show (Y/D) I'm moving into her home, but I think I better tonight, so she's not thinking about it the rest of our vacation.
I can tell (Y/D) is thinking about the conversation at dinner.
"I said we will wait until Sunday to talk, but I think we better today," I start.
I feel (Y/D) tense through the bond. It's strange since she's been ok with me not living here. Now she's not going to like it if I said no.
"I wanted to surprise you, but I can feel you worry more as we get closer to Sunday. I don't know why you are worried. I've been supportive of this idea. Though I should have been supportive and moved to this home with you the day you said you bought this house."
"It's ok; we've only been on Earth for two years and a week. Plus, you are the weapons specialist."
"Prime even said I could live here, so I'm moving in four days earlier than I planned."
(Y/D) smiles as she comes to hug me. She sits on my lap as we hug before making out. We go back to enjoying our breakfast before I leave to tell Prime I'm moving in with (Y/D), hoping I can still keep my room at the base. I mention (Y/D) wanting to start a family, but we just got back from battle, and I worry she'll have to stop the lifestyle she's been living. I hate how Prime tells me to talk to (Y/D) even though it's the right way.
I get my stuff and ask Ratchet a question before leaving the base.

(Y/D) POV
Half of the conversation is done with, but I am still worried about the other half of the conversation. I'm ok with Ironhide suggesting waiting a bit, but I worry he'll say no since we are on Earth. Ironhide comes home three hours later. Not only with a few boxes, but also bags indicating he went to the store, and also the flowers give it away. He puts the boxes on the floor and the bags on the table.
"Flowers for my beautiful flower," he says before kissing me as I take the flowers—a bouquet of my (F/F).
I take care of the flowers; unaware Ironhide would come from behind me. He puts his hands under my shirt and squeezes my breasts before kissing me again.
"What are you—?" I try to ask before being picked up and carried bridal style to our room.

He puts me on the bed before pulling off my pants and underwear. I doubt he's saying let's get dressed together. I take my shirt off as he undresses.
"A little fun to celebrate," he smiles, "but... I-I don't think now is a good time to-."
"It's ok, I understand."
"I want a sparking—."
I stop him by kissing him, "it's ok, go get the condoms."
Though I'm not sure if condoms work with our holoforms, they should; otherwise, we'd have a no-fragging humans rule. I think there are a couple of mechs who have fragged a few human femmes. This may be useless since we fragged Friday night, and it's possible to get sparked the first try.

Ironhide POV
I'm glad (Y/D) understands. I want to frag her even if we're not trying to get her sparked. I love hearing her moans of pleasure.
"I need to take a shower. Want to shower with me?" I ask as I lay on the bed next to (Y/D).
She agrees, and we take a shower together. I don't think the rest of our vacation can top this morning.