you can make the basement romantic or wear a gag that nobody hear your cries from a other place.
I'd make the basement romantic (or turn off the lights I guess). I mean, a gagged Flan would be cute but it's importante to allow her to moan freely during the first time. That and a moaning Flan is must be super cute too.
thumpAlthough it's not very romantic there...thumpthumpIf we do it in the basement, no one will hear even if I let my voice out.