Maybe some other time; the idea made him want to blush more but also made his heart sing briefly. The 'friend' part of Cassie being his girlfriend was the most important to him. But Trunks having a girlfriend was still new, and scary and wonderful, at times like this.

"And here I thought you'd suggest a race." Trunks teased gently, ignoring his blush to kiss her hair. Then he really did have to focus on where they were going.