Loose?

So I had sex for the first time last week and I couldn't help but feel so embarrassed. I have been using dildos (not all the time) that are bigger than average. So my man has an average sized penis I would say around 6 inches. He put it in me and it felt very loose in my area. Keep in mind he is very into foreplay so I was soaked. Anyway after we completely finished he did tell me he could tell that I use things bigger than him. I have never felt so wrong for using things on myself in my life. I know that we don't stretch because the vaginas is a muscle. However, I couldn't help but feel so bad. Is there anything I could do to mend this? Or is it just me getting so horny that I was ready for anything?