Imagine your OTP decorating their future child's room. Person A is oddly obsessed with decorating it perfectly, and Person B finds it very funny/charming.
"I don't care if they're girls. Their. Room. will. Not. Be. Pink."
Kaidan sighed, studying the paint chips his mother had thrust at them earlier that week. "Mom is convinced that —"
"I. Don't. Want. It. To. Be. Pink. Why can't we go with a blue, or a nice green or something?"
He sighed and pressed a kiss to her cheek, wrapping an arm around her so it rested on her stomach. "She's insisting."
"She doesn't have to live with it," Shepard grumbled. "She probably wants it to be a fluffy bunny theme or something, huh?"
"Close enough."
"I want space. I told you I wanted a space theme. I already ordered things!" She stuck her lip out in a pout. Kaidan tapped the table, sighing when she rested her head on his shoulder. "What about this? This'll go with the things I'd picked out."
"This one?" He held up the lavender chip, and she nodded. "All right. I'll get the paint in the morning."
"Good. I think it'll be perfect." She snuggled closer to him, and he rested his head on hers and chuckled. "What?"
"Just you. Being so detailed about this. It's a nursery, not an enemy assault." He kissed her hair. "I love you."
Shepard trailed her fingers along his thigh, smiling quietly. "I love you too, Kai."