Anyone got a context or author comment on this one?

The girl's responses are to the question "What do you use (to masturbate with) when you're by yourself?"

wings said:

The girl's responses are to the question "What do you use (to masturbate with) when you're by yourself?"

Er, hasn't hammer done this before?

colBoh said:

Er, hasn't hammer done this before?

Yes, in pool #5910. Exactly a year ago. Apparently, 7/21 is masturbation day - see the comments on post #1214739.

Mithiwithi said:

Yes, in pool #5910. Exactly a year ago. Apparently, 7/21 is masturbation day - see the comments on post #1214739.

Holy crap. 7/21 is my birthday.

kyon9854 said:

Holy crap. 7/21 is my birthday.

...Now you'll never be out of ideas on how to celebrate it :3

So what does that comment say?

What do you use when you're by yourself?

This year, I really wanted to post it today! I didn't manage in time last year, so I'm satisfied.
(Last year's was post #1214739. It's really been a year, huh...)
A year later, some of their preferences and items have changed.
Reimu and Marisa giving the same answer is following the 'they have the same tastes' ReimuXMarisa school of thought.
By the way, for Summer Comiket, I plan to make an illustration book around this theme if I can make it in time.
(Age-restricted.)