The rule does make sense, and just the tip doesn't count as inside

Make Her Squirt With The Tip.

gimme that tip 😏

It doesn't count if it's just the tip, bud!

I’ll let you put just the tip in.

We can start with just the tip

You gonna put just the tip in or the whole thing?

Using my tip ring, 7 shot count!

Just the tip…? 😏

Just the tip daddy!? 😏

I count to 3 and when I snap you’ll be hard , 1…2…3!

Just the tip 👌