“A husband passionately kisses (kissing in public was and still is quite taboo in Japan) while she attempts to dress her hair.”
She is wearing a wonderfully patterned blue robe.
Reference: p.203 (Fig.78d) in Japanese Erotic Fantasies by C. Uhlenbeck and M. Winkel...etc.
Original antique Japanese color woodblock print. Shunga (Erotic picture).