RCTD-272: ᓄᑲᕇᒃᑑᒃᐸᑦ, ᓇᓚᐅᑦᑖᕋᓱᒃᓗᒍ ᓇᔭᕕᑦ ᓂᑲᒋᑦᑎᐊᖅᑕᖓ! ᐊᖏᔪᑦ ᐱᖓᓱᑦ ᓇᔭᖏᑦ SP

If it's a younger brother, try guessing your sister's nakedness! Big Three Sisters SP