So sneaky.

Anyone familiar with FKA twigs’ avant-garde style may have been a little surprised to see that at Monday evening’s fashionable soiree — which was filled with haute couture creations, over-the-top embellishments and even a 10-foot-long mustard yellow embroidered train (ahem, Rihanna) — the singer played it cool in a colorful but still relatively safe Christopher Kane long-sleeve gown.

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But upon closer inspection, it appears that the 27-year-old performer, who arrived with Robert Pattinson, added her typical shock factor after all. Though subtle, there is definitely a penis in full (frontal) view on her dress. The genitalia appear smack-dab in the middle of her thigh-high slit, making it, um, extra sexy.

Never change, FKA twigs.