Lying about my age

So basically I’m 19 & he’s 25 he’ll be 26 soon & I’ll be 20 next year, he thinks I’m like 22 at least I think I don’t really know how old he thinks I am but I know he doesn’t think I’m this young.. we have been dating a while now & yes we have been sexual & we both have daughters he thinks mine is almost 3 but she’s almost 2 actually & his daughter is 5 but I lied so he wouldn’t get suspicious but he really wants me to meet his family and his daughter & im excited but before any of that happens I feel like I should be completely honest because I really really like him & he makes me feel so good & happy so do you all think that this age gap is to big or is it possibly reasonable? My father & mother have a 8 year age gap but again they are older so it looks better vs even though I’m legal I’m still pretty young.. I’m going to tell him regardless just please advice !! Also we started talking maybe 1-2 years ago it’s just we just recently started talking again so age hasn’t come up yet but before it does I need to be honest.: even if he doesn’t want it to work or even if he wants to wait a year or two I feel like we can’t build anything off of lies.

UPDATE : we only started talking less then a WEEK AGO like y’all are trippin, we were friends 1-2 years ago I was 17-18 he was maybe 22-23 like y’all think that’s weird ? ok & I said we been together for a while I guess cause it feels like that & we recently got back in touch & decided to catch up & now we have feelings for each other I want to be honest !! like come on now y’all acting like we been together for years & I clearly said I’m going to tell him regardless what happens because I don’t want to start a relationship on LIES.. I lied about my age when I was 17 I was young like wtf but now that we are back in touch I want to come clean like I did not lie recently.. I lied back then which was dumb but I was 17.. I want to come clean before we go further, I’m agreeing with everyone for the most part like I want to come clean about the past 💀