The same way that some reimu types consider getting pregnant as the easiest of conditions, some yukkuri times--usually marisa--consider making other yukkuri pregnant as a sign of their great benevolence and generosity in spreading easiness. As shown in other fics, some even make it their mission to refresh with uneasy yukkuri--like pets--so that they may get pregnant and be easy yukkuri. For them, it's not rape if it lets you take it easy.
It must have been quite a shock for this marisa to be hit with the realization that their virility is unwanted--that they're nothing more than refreshing poles, to be used and discarded like uneasy trash (that they really are).
Reimu is a pretty cool yu she aborts stalks and aint afraid of anything.
Sorry Marisa, but no manipulating someone by getting them pregnant to be shoehorned into that someone's wealthy family! No Pet Owner wants unauthorized partners, understand easy!
Did you [make it go "beep"] before you came in like you're supposed to?The EndMarisa's... little ones......
Where are [they]...?Reimu pushed [the button] easy![Reimu] is home, easy!