My (22M) girlfriend (28F) is a detention officer and keeps saying that I would look cute in the inmate uniform. What do u think she means?

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Hi. My gf is older than me and she is an intake officer at a juvenile detention center. She recently keeps saying that I might look exactly like one of the inmates she usually books there and she brought home a box of of worn out navy blue inmate uniforms, blue shoes and underwear that was going to be thrown away from the juvy. I was like wtf is it but she said she wanted to show me what it looks like and I was like ok but she kept saying like I might look kinda cute in it but she didnt say clearly and I was like ok and I said I would be too embarrassed to wear it. What do u think she means? Do u think I might have to wear it for her?

TL;DR? She brought some uniforms from the detention center. do u think it means she wants me to wear it?