Rika moves in with Naoya and the others, and insists that sleeping in the same room with him in a non-sexual fashion should be completely permissible. Naoya agrees, but only if all the girls get to take turns sleeping in his room in a non-sexual fashion.
You won't have a problem with me 
sharing a bed with him if you trust him.
.لن تمانعا أن أتشارك معه الفراش إن كنتما تثقان به
Wenn ihr ihm so sehr vertraut, können wir
auch gerne im selben Bett schlafen.
Si tanto confían en él, no les
importará que compartamos cama.
Si tanto confiáis en él, no os
importará que compartamos cama.
Puisque vous lui faites confiance,
je peux dormir dans son lit.
Se vi fidate di lui, non avrete problemi 
a lasciarci condividere il letto.
Então, como confiam nele,
não há problema em eu dormir aqui.
Если вы ему доверяете,
то и на одной кровати спать разрешите.